3D Nonlinear beam-column elements Gravity load analysis followed by transient analysis

Reinforced concrete one-bay, three-story frame Distributed vertical load on girder

Example Objectives:

3D building with rigid diaphragms Nonlinear beam-column ops.elements Gravity load analysis followed by transient analysis

Units: kips, in, sec

Examples code see OpenSees Example5.1.py

Start of model generation

import numpy as np
import openseespy.opensees as ops
import utils._RCsection as RCsection  # local module for RC section properties

import opstool
import opstool.vis.plotly as opsvis

# remove existing model
ops.wipe()

# create ModelBuilder (with three-dimensions and 6 DOF/node)
ops.model("BasicBuilder", "-ndm", 3, "-ndf", 6)

# set default units
ops.defaultUnits("-force", "kip", "-length", "in", "-time", "sec", "-temp", "F")

Define geometry

# Set parameters for model geometry
h = 144.0  # Story height
by = 240.0  # Bay width in Y-direction
bx = 240.0  # Bay width in X-direction

# Create nodes
#       tag    X        Y        Z
ops.node(1, -bx / 2.0, by / 2.0, 0.0)
ops.node(2, bx / 2.0, by / 2.0, 0.0)
ops.node(3, bx / 2.0, -by / 2.0, 0.0)
ops.node(4, -bx / 2.0, -by / 2.0, 0.0)

ops.node(5, -bx / 2.0, by / 2.0, h)
ops.node(6, bx / 2.0, by / 2.0, h)
ops.node(7, bx / 2.0, -by / 2.0, h)
ops.node(8, -bx / 2.0, -by / 2.0, h)

ops.node(10, -bx / 2.0, by / 2.0, 2.0 * h)
ops.node(11, bx / 2.0, by / 2.0, 2.0 * h)
ops.node(12, bx / 2.0, -by / 2.0, 2.0 * h)
ops.node(13, -bx / 2.0, -by / 2.0, 2.0 * h)

ops.node(15, -bx / 2.0, by / 2.0, 3.0 * h)
ops.node(16, bx / 2.0, by / 2.0, 3.0 * h)
ops.node(17, bx / 2.0, -by / 2.0, 3.0 * h)
ops.node(18, -bx / 2.0, -by / 2.0, 3.0 * h)

# Retained nodes for rigid diaphragm
#        tag   X    Y    Z
ops.node(9, 0.0, 0.0, h)
ops.node(14, 0.0, 0.0, 2.0 * h)
ops.node(19, 0.0, 0.0, 3.0 * h)

# Set base constraints
#      tag DX DY DZ RX RY RZ
ops.fix(1, 1, 1, 1, 1, 1, 1)
ops.fix(2, 1, 1, 1, 1, 1, 1)
ops.fix(3, 1, 1, 1, 1, 1, 1)
ops.fix(4, 1, 1, 1, 1, 1, 1)

# Define rigid diaphragm multi-point constraints
#              normalDir retained constrained
ops.rigidDiaphragm(3, 9, 5, 6, 7, 8)
ops.rigidDiaphragm(3, 14, 10, 11, 12, 13)
ops.rigidDiaphragm(3, 19, 15, 16, 17, 18)

# Constraints for rigid diaphragm retained nodes
#      tag DX DY DZ RX RY RZ
ops.fix(9, 0, 0, 1, 1, 1, 0)
ops.fix(14, 0, 0, 1, 1, 1, 0)
ops.fix(19, 0, 0, 1, 1, 1, 0)

Define materials for nonlinear columns

CONCRETE

fc = 4.0
Ec = 57000.0 * np.sqrt(fc * 1000.0) / 1000.0
# Core concrete (confined)
#                                 tag  f'c   epsc0  f'cu  epscu
ops.uniaxialMaterial("Concrete01", 1, -5.0, -0.005, -3.5, -0.02)

# Cover concrete (unconfined)
#                                 tag  f'c   epsc0  f'cu  epscu
ops.uniaxialMaterial("Concrete01", 2, -fc, -0.002, 0.0, -0.006)

# STEEL
fy = 60.0  # Yield stress
Es = 30000.0  # Young's modulus
# Reinforcing steel
#                              tag fy  E0  b
ops.uniaxialMaterial("Steel01", 3, fy, Es, 0.02)

# Column parameters
h = 18.0
GJ = 1.0e10
colSec = 1

# Call the RCsection procedure to generate the column section
#                        id  h  b cover core cover steel nBars barArea nfCoreY nfCoreZ nfCoverY nfCoverZ GJ
RCsection.create(colSec, h, h, 2.5, 1, 2, 3, 3, 0.79, 8, 8, 10, 10, GJ)

Define column ops.elements

PDelta = "OFF"
# PDelta = "ON"

# Geometric transformation for columns
if PDelta == "OFF":
    ops.geomTransf("Linear", 1, 1.0, 0.0, 0.0)
else:
    ops.geomTransf("PDelta", 1, 1.0, 0.0, 0.0)

# Number of column integration points (sections)
np = 4
ops.beamIntegration("Lobatto", colSec, colSec, np)

# Create the nonlinear column elements
eleType = "forceBeamColumn"
#                   tag ndI ndJ transfTag integrationTag
ops.element(eleType, 1, 1, 5, 1, colSec)
ops.element(eleType, 2, 2, 6, 1, colSec)
ops.element(eleType, 3, 3, 7, 1, colSec)
ops.element(eleType, 4, 4, 8, 1, colSec)

ops.element(eleType, 5, 5, 10, 1, colSec)
ops.element(eleType, 6, 6, 11, 1, colSec)
ops.element(eleType, 7, 7, 12, 1, colSec)
ops.element(eleType, 8, 8, 13, 1, colSec)

ops.element(eleType, 9, 10, 15, 1, colSec)
ops.element(eleType, 10, 11, 16, 1, colSec)
ops.element(eleType, 11, 12, 17, 1, colSec)
ops.element(eleType, 12, 13, 18, 1, colSec)

# Define beam ops.elements
# --------------------------
# Define material properties for elastic beams
# Using beam depth of 24 and width of 18
Abeam = 18.0 * 24.0
# "Cracked" second moments of area
Ibeamzz = 0.5 * 1.0 / 12.0 * 18.0 * pow(24.0, 3)
Ibeamyy = 0.5 * 1.0 / 12.0 * 24.0 * pow(18.0, 3)
beamSec = 2

# Define elastic section for beams
#                       tag     E    A      Iz       Iy     G    J
ops.section("Elastic", beamSec, Ec, Abeam, Ibeamzz, Ibeamyy, GJ, 1.0)

# Geometric transformation for beams
ops.geomTransf("Linear", 2, 1.0, 1.0, 0.0)

# Number of beam integration points (sections)
np = 3
ops.beamIntegration("Lobatto", beamSec, beamSec, np)

# Create the beam ops.elements
eleType = "forceBeamColumn"
#                   tag ndI ndJ transfTag integrationTag
ops.element(eleType, 13, 5, 6, 2, beamSec)
ops.element(eleType, 14, 6, 7, 2, beamSec)
ops.element(eleType, 15, 7, 8, 2, beamSec)
ops.element(eleType, 16, 8, 5, 2, beamSec)

ops.element(eleType, 17, 10, 11, 2, beamSec)
ops.element(eleType, 18, 11, 12, 2, beamSec)
ops.element(eleType, 19, 12, 13, 2, beamSec)
ops.element(eleType, 20, 13, 10, 2, beamSec)

ops.element(eleType, 21, 15, 16, 2, beamSec)
ops.element(eleType, 22, 16, 17, 2, beamSec)
ops.element(eleType, 23, 17, 18, 2, beamSec)
ops.element(eleType, 24, 18, 15, 2, beamSec)

Define gravity loads

# Gravity load applied at each corner node
# 10% of column capacity
p = 0.1 * fc * h * h
g = 386.09

# Mass lumped at retained nodes
m = (4.0 * p) / g

# Rotary inertia of floor about retained node
i = m * (bx * bx + by * by) / 12.0

# Set mass at the retained nodes
#        tag MX MY MZ   RX   RY   RZ
ops.mass(9, m, m, 0.0, 0.0, 0.0, i)
ops.mass(14, m, m, 0.0, 0.0, 0.0, i)
ops.mass(19, m, m, 0.0, 0.0, 0.0, i)

# Define gravity loads
# create a Constant TimeSeries
ops.timeSeries("Constant", 1)
# create a Plain load pattern
ops.pattern("Plain", 1, 1, "-fact", 1.0)

for i in [5, 6, 7, 8, 10, 11, 12, 13, 15, 16, 17, 18]:
    ops.load(i, 0.0, 0.0, -p, 0.0, 0.0, 0.0)

fig = opsvis.plot_model(show_nodal_loads=True)
fig

fig = opsvis.plot_eigen(mode_tags=[1, 4], subplots=False)
fig

OPSTOOL ::  Eigen data has been saved to G:\opstool\docs\.opstool.output/EigenData-Auto.zarr!

Dynamic Loads

# set rayleigh damping factors
ops.rayleigh(0.0, 0.0, 0.0, 0.0018)

# Define earthquake excitation
# ----------------------------
dt = 0.02
# Set up the acceleration records for Tabas fault normal and fault parallel
ops.timeSeries("Path", 2, "-filePath", "utils/tabasFN.txt", "-dt", dt, "-factor", g)
ops.timeSeries("Path", 3, "-filePath", "utils/tabasFP.txt", "-dt", dt, "-factor", g)

# Define the excitation using the Tabas ground motion records
#                         tag dir         accel series args
ops.pattern("UniformExcitation", 2, 1, "-accel", 2)
ops.pattern("UniformExcitation", 3, 2, "-accel", 3)

Smart Analysis

# create the system of equation
ops.system("UmfPack")
# create the DOF numberer
ops.numberer("Plain")
# create the constraint handler
ops.constraints("Transformation")
# create the convergence test
ops.test("EnergyIncr", 1.0e-8, 20)
# create the solution algorithm, a Newton-Raphson algorithm
ops.algorithm("Newton")
# create the integration scheme, the Newmark with gamma=0.5 and beta=0.25
ops.integrator("Newmark", 0.5, 0.25)
# create the analysis object
ops.analysis("Transient")

ODB = opstool.post.CreateODB(odb_tag=1)  # Create ODB object

analysis = opstool.anlys.SmartAnalyze(
    "Transient",
    tryAddTestTimes=True,  # add test times to the analysis
    testIterTimesMore=[50, 100],
    tryAlterAlgoTypes=True,  # try different algorithms
    algoTypes=[40, 10, 20, 30],  # algorithm types to try
    minStep=1e-6,  # minimum step size for substepping
    debugMode=True,  # False for progress bar, True for debug info
)
segs = analysis.transient_split(npts=2000)  # Tell the analysis how to split the steps, and how many steps to take

for _ in segs:
    analysis.TransientAnalyze(dt=0.01)
    ODB.fetch_response_step()  # fetch response for the current step
ODB.save_response()  # save response to ODB
analysis.close()  # Close the analysis object

>>> ✳️ OPSTOOL::SmartAnalyze:: Setting algorithm to  KrylovNewton ...
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>>> 🎉 OPSTOOL::SmartAnalyze:: Successfully finished! Time consumption: 3.951 s. 🎉
OPSTOOL ::  All responses data with _odb_tag = 1 saved in G:\opstool\docs\.opstool.output/RespStepData-1.zarr!

Post-processing

nodal_resp = opstool.post.get_nodal_responses(odb_tag=1)
nodal_resp

OPSTOOL ::  Loading all response data from G:\opstool\docs\.opstool.output/RespStepData-1.zarr ...

<xarray.Dataset> Size: 6MB
Dimensions:             (time: 2001, nodeTags: 19, DOFs: 6)
Coordinates:
  * time                (time) float32 8kB 0.0 0.01 0.02 ... 19.98 19.99 20.0
  * nodeTags            (nodeTags) int64 152B 1 2 3 4 5 6 ... 14 15 16 17 18 19
  * DOFs                (DOFs) <U2 48B 'UX' 'UY' 'UZ' 'RX' 'RY' 'RZ'
Data variables:
    accel               (time, nodeTags, DOFs) float32 912kB 0.0 ... 5.424e-05
    disp                (time, nodeTags, DOFs) float32 912kB 0.0 ... 3.545e-07
    pressure            (time, nodeTags) float32 152kB 0.0 0.0 0.0 ... 0.0 0.0
    reaction            (time, nodeTags, DOFs) float32 912kB 0.0 0.0 ... 0.0 0.0
    rayleighForces      (time, nodeTags, DOFs) float32 912kB 0.0 0.0 ... 0.0 0.0
    vel                 (time, nodeTags, DOFs) float32 912kB 0.0 ... 1.639e-06
    reactionIncInertia  (time, nodeTags, DOFs) float32 912kB 0.0 0.0 ... 0.6991
Attributes:
    UX:       Displacement in X direction
    UY:       Displacement in Y direction
    UZ:       Displacement in Z direction
    RX:       Rotation about X axis
    RY:       Rotation about Y axis
    RZ:       Rotation about Z axis

xarray.Dataset

• Dimensions:
  • time: 2001
  • nodeTags: 19
  • DOFs: 6
• Coordinates: (3)
  • time
    (time)
    float32
    0.0 0.01 0.02 ... 19.98 19.99 20.0

    array([0.000e+00, 1.000e-02, 2.000e-02, ..., 1.998e+01, 1.999e+01, 2.000e+01],
          shape=(2001,), dtype=float32)

  • nodeTags
    (nodeTags)
    int64
    1 2 3 4 5 6 7 ... 14 15 16 17 18 19

    array([ 1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 16, 17, 18,
           19])

  • DOFs
    (DOFs)
    <U2
    'UX' 'UY' 'UZ' 'RX' 'RY' 'RZ'

    array(['UX', 'UY', 'UZ', 'RX', 'RY', 'RZ'], dtype='<U2')

• Data variables: (7)
  • accel
    (time, nodeTags, DOFs)
    float32
    0.0 0.0 0.0 ... 0.0 0.0 5.424e-05

    array([[[ 0.0000000e+00,  0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00,  0.0000000e+00],
            [ 0.0000000e+00,  0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00,  0.0000000e+00],
            [ 0.0000000e+00,  0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00,  0.0000000e+00],
            ...,
            [ 0.0000000e+00,  0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00,  0.0000000e+00],
            [ 0.0000000e+00,  0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00,  0.0000000e+00],
            [ 0.0000000e+00,  0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00,  0.0000000e+00]],
    
           [[ 0.0000000e+00,  0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00,  0.0000000e+00],
            [ 0.0000000e+00,  0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00,  0.0000000e+00],
            [ 0.0000000e+00,  0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00,  0.0000000e+00],
    ...
             -2.6796675e+00, -1.7242796e-04],
            [ 6.9586319e+01,  6.0939014e+01, -1.0191526e+04, -4.0251031e+00,
              7.5497627e+00, -1.7242796e-04],
            [ 6.9607010e+01,  6.0918324e+01,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00, -1.7242796e-04]],
    
           [[ 0.0000000e+00,  0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00,  0.0000000e+00],
            [ 0.0000000e+00,  0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00,  0.0000000e+00],
            [ 0.0000000e+00,  0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00,  0.0000000e+00],
            ...,
            [ 8.8454010e+01,  6.1341175e+01,  1.0666225e+04,  4.1726341e+00,
              2.6638384e+00,  5.4238732e-05],
            [ 8.8454010e+01,  6.1328159e+01,  1.0192513e+04,  4.1224132e+00,
             -7.5829368e+00,  5.4238732e-05],
            [ 8.8447502e+01,  6.1334667e+01,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00,  5.4238732e-05]]],
          shape=(2001, 19, 6), dtype=float32)

  • disp
    (time, nodeTags, DOFs)
    float32
    0.0 0.0 0.0 ... 0.0 0.0 3.545e-07

    array([[[ 0.00000000e+00,  0.00000000e+00,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
            [ 0.00000000e+00,  0.00000000e+00,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
            [ 0.00000000e+00,  0.00000000e+00,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
            ...,
            [ 0.00000000e+00,  0.00000000e+00,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
            [ 0.00000000e+00,  0.00000000e+00,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
            [ 0.00000000e+00,  0.00000000e+00,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00]],
    
           [[ 0.00000000e+00,  0.00000000e+00,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
            [ 0.00000000e+00,  0.00000000e+00,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
            [ 0.00000000e+00,  0.00000000e+00,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
    ...
              1.85411505e-03, -1.97567930e-03,  3.35195637e-07],
            [-1.27112770e+01, -1.33447723e+01, -1.29111052e+00,
              1.85420399e-03, -2.07154942e-03,  3.35195637e-07],
            [-1.27113171e+01, -1.33447323e+01,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  3.35195637e-07]],
    
           [[ 0.00000000e+00,  0.00000000e+00,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
            [ 0.00000000e+00,  0.00000000e+00,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
            [ 0.00000000e+00,  0.00000000e+00,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
            ...,
            [-1.27927341e+01, -1.34128046e+01, -1.07731545e+00,
              1.91707059e-03, -1.97615242e-03,  3.54544312e-07],
            [-1.27927341e+01, -1.34128904e+01, -1.29108393e+00,
              1.91717583e-03, -2.07127025e-03,  3.54544312e-07],
            [-1.27927761e+01, -1.34128475e+01,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  3.54544312e-07]]],
          shape=(2001, 19, 6), dtype=float32)

  • pressure
    (time, nodeTags)
    float32
    0.0 0.0 0.0 0.0 ... 0.0 0.0 0.0 0.0

    array([[0., 0., 0., ..., 0., 0., 0.],
           [0., 0., 0., ..., 0., 0., 0.],
           [0., 0., 0., ..., 0., 0., 0.],
           ...,
           [0., 0., 0., ..., 0., 0., 0.],
           [0., 0., 0., ..., 0., 0., 0.],
           [0., 0., 0., ..., 0., 0., 0.]], shape=(2001, 19), dtype=float32)

  • reaction
    (time, nodeTags, DOFs)
    float32
    0.0 0.0 0.0 0.0 ... 0.0 0.0 0.0 0.0

    array([[[ 0.00000000e+00,  0.00000000e+00,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
            [ 0.00000000e+00,  0.00000000e+00,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
            [ 0.00000000e+00,  0.00000000e+00,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
            ...,
            [ 0.00000000e+00,  0.00000000e+00,  1.29600006e+02,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
            [ 0.00000000e+00,  0.00000000e+00,  1.29600006e+02,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
            [ 2.02751427e+01,  8.66246402e-01,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00]],
    
           [[ 2.75238436e-02,  2.84889434e-03,  2.82584625e+02,
             -2.28986546e-01,  2.21229267e+00,  2.41937851e-14],
            [ 2.75239572e-02,  2.84890947e-03,  2.82571259e+02,
             -2.28987753e-01,  2.21230292e+00,  2.41937851e-14],
            [ 2.75239423e-02,  2.84890831e-03,  2.82572632e+02,
             -2.28987649e-01,  2.21230173e+00,  2.41937851e-14],
    ...
              8.90267491e-02,  8.80653039e-02,  2.14690151e+01],
            [-1.23968658e+01, -9.04232502e+00, -8.76774825e-03,
              1.83020949e-01,  6.97981417e-02,  2.14690151e+01],
            [-4.70054016e+01, -4.57786064e+01,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00]],
    
           [[ 2.53449345e+01,  3.54995003e+01,  3.87511932e+02,
             -2.57530127e+03,  1.86224231e+03, -1.12936821e+02],
            [ 3.03297195e+01,  3.15530624e+01,  2.68336487e+02,
             -2.30019043e+03,  2.20895337e+03, -1.12936821e+02],
            [ 2.59079075e+01,  3.39324036e+01,  3.89663300e+02,
             -2.45480908e+03,  1.90669751e+03, -1.12936821e+02],
            ...,
            [-1.14856958e+01, -9.52916050e+00, -2.44215485e-02,
             -1.86220974e-01,  1.83520094e-01,  2.09676170e+01],
            [-1.23798437e+01, -9.77938843e+00, -2.79760975e-02,
             -9.24181566e-02,  1.96592674e-01,  2.09676170e+01],
            [-7.24173660e+01, -4.34403648e+01,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00]]],
          shape=(2001, 19, 6), dtype=float32)

  • rayleighForces
    (time, nodeTags, DOFs)
    float32
    0.0 0.0 0.0 0.0 ... 0.0 0.0 0.0 0.0

    array([[[ 0.00000000e+00,  0.00000000e+00,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
            [ 0.00000000e+00,  0.00000000e+00,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
            [ 0.00000000e+00,  0.00000000e+00,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
            ...,
            [ 0.00000000e+00,  0.00000000e+00,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
            [ 0.00000000e+00,  0.00000000e+00,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
            [ 0.00000000e+00,  0.00000000e+00,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00]],
    
           [[ 8.84462334e-03,  9.15475306e-04,  9.72372055e+01,
             -7.35834688e-02,  7.10907102e-01,  8.70976197e-15],
            [ 8.84471834e-03,  9.15486191e-04,  9.72328339e+01,
             -7.35843405e-02,  7.10915029e-01,  8.70976197e-15],
            [ 8.84470716e-03,  9.15485143e-04,  9.72332840e+01,
             -7.35842586e-02,  7.10914195e-01,  8.70976197e-15],
    ...
              7.74402544e-02,  5.96465766e-02, -2.55019158e-01],
            [ 5.60294790e-03, -1.24900609e-01, -8.35302379e-03,
              5.90321794e-03,  4.54360992e-02, -2.55019158e-01],
            [ 0.00000000e+00,  0.00000000e+00,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00]],
    
           [[ 1.21581808e-01, -1.16820499e-01, -1.24589257e-01,
              8.91101837e+00,  9.26643658e+00,  3.69596556e-02],
            [ 1.18208110e-01, -1.16818428e-01, -2.19111457e-01,
              8.83124828e+00,  8.96775532e+00,  3.69596556e-02],
            [ 1.22017592e-01, -1.16354555e-01,  1.23033106e-01,
              8.83191395e+00,  9.28126240e+00,  3.69596556e-02],
            ...,
            [-1.08128216e-03, -1.32003531e-01, -4.77472367e-03,
             -6.50150701e-02,  6.02148985e-03,  7.45154917e-02],
            [ 1.78259925e-03, -1.38548613e-01,  7.26395985e-03,
             -2.32938714e-02, -7.60002360e-02,  7.45154917e-02],
            [ 0.00000000e+00,  0.00000000e+00,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00]]],
          shape=(2001, 19, 6), dtype=float32)

  • vel
    (time, nodeTags, DOFs)
    float32
    0.0 0.0 0.0 ... 0.0 0.0 1.639e-06

    array([[[ 0.0000000e+00,  0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00,  0.0000000e+00],
            [ 0.0000000e+00,  0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00,  0.0000000e+00],
            [ 0.0000000e+00,  0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00,  0.0000000e+00],
            ...,
            [ 0.0000000e+00,  0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00,  0.0000000e+00],
            [ 0.0000000e+00,  0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00,  0.0000000e+00],
            [ 0.0000000e+00,  0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00,  0.0000000e+00]],
    
           [[ 0.0000000e+00,  0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00,  0.0000000e+00],
            [ 0.0000000e+00,  0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00,  0.0000000e+00],
            [ 0.0000000e+00,  0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00,  0.0000000e+00],
    ...
             -7.7395107e-06,  2.2303407e-06],
            [-8.5407438e+00, -7.1174393e+00,  1.9480121e-04,  6.0539041e-03,
              1.1085253e-04,  2.2303407e-06],
            [-8.5410118e+00, -7.1171713e+00,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00,  2.2303407e-06]],
    
           [[ 0.0000000e+00,  0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00,  0.0000000e+00],
            [ 0.0000000e+00,  0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00,  0.0000000e+00],
            [ 0.0000000e+00,  0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00,  0.0000000e+00],
            ...,
            [-7.7505422e+00, -6.5057096e+00,  3.7035014e-02,  6.5386165e-03,
             -8.6884073e-05,  1.6393946e-06],
            [-7.7505422e+00, -6.5061030e+00,  5.1234118e-03,  6.5404559e-03,
             -5.5018121e-05,  1.6393946e-06],
            [-7.7507391e+00, -6.5059066e+00,  0.0000000e+00,  0.0000000e+00,
              0.0000000e+00,  1.6393946e-06]]],
          shape=(2001, 19, 6), dtype=float32)

  • reactionIncInertia
    (time, nodeTags, DOFs)
    float32
    0.0 0.0 0.0 0.0 ... 0.0 0.0 0.6991

    array([[[ 0.00000000e+00,  0.00000000e+00,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
            [ 0.00000000e+00,  0.00000000e+00,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
            [ 0.00000000e+00,  0.00000000e+00,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
            ...,
            [ 0.00000000e+00,  0.00000000e+00,  1.29600006e+02,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
            [ 0.00000000e+00,  0.00000000e+00,  1.29600006e+02,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
            [ 2.02751427e+01,  8.66246402e-01,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  0.00000000e+00]],
    
           [[ 3.63684669e-02,  3.76436976e-03,  3.79821838e+02,
             -3.02570015e-01,  2.92319965e+00,  3.29035471e-14],
            [ 3.63686755e-02,  3.76439560e-03,  3.79804077e+02,
             -3.02572101e-01,  2.92321777e+00,  3.29035471e-14],
            [ 3.63686495e-02,  3.76439351e-03,  3.79805908e+02,
             -3.02571893e-01,  2.92321587e+00,  3.29035471e-14],
    ...
              1.66466996e-01,  1.47711888e-01,  2.12139969e+01],
            [-1.23912630e+01, -9.16722488e+00, -1.71207730e-02,
              1.88924164e-01,  1.15234241e-01,  2.12139969e+01],
            [ 4.64553833e+01,  3.60159454e+01,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00, -2.22256947e+00]],
    
           [[ 2.54665165e+01,  3.53826790e+01,  3.87387360e+02,
             -2.56639014e+03,  1.87150879e+03, -1.12899857e+02],
            [ 3.04479275e+01,  3.14362450e+01,  2.68117371e+02,
             -2.29135913e+03,  2.21792114e+03, -1.12899857e+02],
            [ 2.60299244e+01,  3.38160477e+01,  3.89786316e+02,
             -2.44597705e+03,  1.91597876e+03, -1.12899857e+02],
            ...,
            [-1.14867764e+01, -9.66116333e+00, -2.91962717e-02,
             -2.51236051e-01,  1.89541578e-01,  2.10421314e+01],
            [-1.23780613e+01, -9.91793728e+00, -2.07121391e-02,
             -1.15712024e-01,  1.20592445e-01,  2.10421314e+01],
            [ 4.63403893e+01,  3.89132118e+01,  0.00000000e+00,
              0.00000000e+00,  0.00000000e+00,  6.99128807e-01]]],
          shape=(2001, 19, 6), dtype=float32)

• Attributes: (6)

  UX :

  Displacement in X direction

  UY :

  Displacement in Y direction

  UZ :

  Displacement in Z direction

  RX :

  Rotation about X axis

  RY :

  Rotation about Y axis

  RZ :

  Rotation about Z axis

frame_resp = opstool.post.get_element_responses(odb_tag=1, ele_type="Frame")
frame_resp

OPSTOOL ::  Loading Frame response data from G:\opstool\docs\.opstool.output/RespStepData-1.zarr ...

<xarray.Dataset> Size: 18MB
Dimensions:              (time: 2001, eleTags: 24, basicDofs: 6, secPoints: 4,
                          secDofs: 6, localDofs: 12, locs: 4)
Coordinates:
  * time                 (time) float32 8kB 0.0 0.01 0.02 ... 19.98 19.99 20.0
  * eleTags              (eleTags) int64 192B 1 2 3 4 5 6 ... 19 20 21 22 23 24
  * basicDofs            (basicDofs) <U3 72B 'N' 'MZ1' 'MZ2' 'MY1' 'MY2' 'T'
  * secPoints            (secPoints) int64 32B 1 2 3 4
  * secDofs              (secDofs) <U2 48B 'N' 'MZ' 'VY' 'MY' 'VZ' 'T'
  * localDofs            (localDofs) <U3 144B 'FX1' 'FY1' 'FZ1' ... 'MY2' 'MZ2'
  * locs                 (locs) <U5 80B 'alpha' 'X' 'Y' 'Z'
Data variables:
    basicDeformations    (time, eleTags, basicDofs) float32 1MB 0.0 ... 6.582...
    basicForces          (time, eleTags, basicDofs) float32 1MB 0.0 ... 27.42
    plasticDeformation   (time, eleTags, basicDofs) float32 1MB 0.0 -0.0 ... 0.0
    sectionForces        (time, eleTags, secPoints, secDofs) float32 5MB 0.0 ...
    localForces          (time, eleTags, localDofs) float32 2MB -0.0 ... 900.7
    sectionDeformations  (time, eleTags, secPoints, secDofs) float32 5MB 0.0 ...
    sectionLocs          (time, eleTags, secPoints, locs) float32 3MB 0.0 ......
Attributes:
    localDofs:  local coord system dofs at end 1 and end 2
    basicDofs:  basic coord system dofs at end 1 and end 2
    secPoints:  section points No.
    secDofs:    section forces and deformations Dofs. Note that the section D...
    Notes:      Note that the deformations are displacements and rotations in...

xarray.Dataset

• Dimensions:
  • time: 2001
  • eleTags: 24
  • basicDofs: 6
  • secPoints: 4
  • secDofs: 6
  • localDofs: 12
  • locs: 4
• Coordinates: (7)
  • time
    (time)
    float32
    0.0 0.01 0.02 ... 19.98 19.99 20.0

    array([0.000e+00, 1.000e-02, 2.000e-02, ..., 1.998e+01, 1.999e+01, 2.000e+01],
          shape=(2001,), dtype=float32)

  • eleTags
    (eleTags)
    int64
    1 2 3 4 5 6 7 ... 19 20 21 22 23 24

    array([ 1,  2,  3,  4,  5,  6,  7,  8,  9, 10, 11, 12, 13, 14, 15, 16, 17, 18,
           19, 20, 21, 22, 23, 24])

  • basicDofs
    (basicDofs)
    <U3
    'N' 'MZ1' 'MZ2' 'MY1' 'MY2' 'T'

    array(['N', 'MZ1', 'MZ2', 'MY1', 'MY2', 'T'], dtype='<U3')

  • secPoints
    (secPoints)
    int64
    1 2 3 4

    array([1, 2, 3, 4])

  • secDofs
    (secDofs)
    <U2
    'N' 'MZ' 'VY' 'MY' 'VZ' 'T'

    array(['N', 'MZ', 'VY', 'MY', 'VZ', 'T'], dtype='<U2')

  • localDofs
    (localDofs)
    <U3
    'FX1' 'FY1' 'FZ1' ... 'MY2' 'MZ2'

    array(['FX1', 'FY1', 'FZ1', 'MX1', 'MY1', 'MZ1', 'FX2', 'FY2', 'FZ2', 'MX2',
           'MY2', 'MZ2'], dtype='<U3')

  • locs
    (locs)
    <U5
    'alpha' 'X' 'Y' 'Z'

    array(['alpha', 'X', 'Y', 'Z'], dtype='<U5')

• Data variables: (7)
  • basicDeformations
    (time, eleTags, basicDofs)
    float32
    0.0 -0.0 ... 2.924e-16 6.582e-07

    array([[[ 0.00000000e+00, -0.00000000e+00,  0.00000000e+00,
              0.00000000e+00, -0.00000000e+00,  0.00000000e+00],
            [ 0.00000000e+00, -0.00000000e+00,  0.00000000e+00,
              0.00000000e+00, -0.00000000e+00,  0.00000000e+00],
            [ 0.00000000e+00, -0.00000000e+00,  0.00000000e+00,
              0.00000000e+00, -0.00000000e+00,  0.00000000e+00],
            ...,
            [ 0.00000000e+00, -0.00000000e+00,  0.00000000e+00,
              0.00000000e+00, -0.00000000e+00,  0.00000000e+00],
            [ 0.00000000e+00, -0.00000000e+00,  0.00000000e+00,
              0.00000000e+00, -0.00000000e+00,  0.00000000e+00],
            [ 0.00000000e+00, -0.00000000e+00,  0.00000000e+00,
              0.00000000e+00, -0.00000000e+00,  0.00000000e+00]],
    
           [[-3.70246544e-02,  2.04920866e-07, -9.88780968e-08,
             -1.97978784e-06,  9.55285941e-07, -3.48390485e-22],
            [-3.70228179e-02,  2.04920866e-07, -9.88780897e-08,
             -1.97978784e-06,  9.55282530e-07, -3.48390485e-22],
            [-3.70230079e-02,  2.04920866e-07, -9.88781252e-08,
             -1.97978784e-06,  9.55282530e-07, -3.48390485e-22],
    ...
              2.92520393e-16, -2.92520393e-16,  7.20234368e-07],
            [ 0.00000000e+00,  1.08655239e-03, -1.18242251e-03,
             -4.40550147e-16,  4.40550147e-16, -8.88858764e-08],
            [ 0.00000000e+00, -8.14868428e-04,  9.60178964e-04,
             -2.92520393e-16,  2.92520393e-16,  6.33206525e-07]],
    
           [[-9.61328387e-01,  7.04965144e-02, -6.47214651e-02,
             -6.52794987e-02,  6.07467331e-02,  1.62629021e-06],
            [-7.65404344e-01,  7.04938024e-02, -6.47240430e-02,
             -6.52794987e-02,  6.02407865e-02,  1.62629021e-06],
            [-9.95027602e-01,  7.04938024e-02, -6.57203570e-02,
             -6.52767867e-02,  6.02448769e-02,  1.62629021e-06],
            ...,
            [ 0.00000000e+00, -1.00911129e-03,  8.69373849e-04,
              2.92350669e-16, -2.92350669e-16,  7.42086229e-07],
            [ 0.00000000e+00,  1.08545087e-03, -1.18056871e-03,
             -4.40380423e-16,  4.40380423e-16, -1.05210496e-07],
            [ 0.00000000e+00, -8.70581018e-04,  1.01055705e-03,
             -2.92350669e-16,  2.92350669e-16,  6.58156580e-07]]],
          shape=(2001, 24, 6), dtype=float32)

  • basicForces
    (time, eleTags, basicDofs)
    float32
    0.0 -0.0 0.0 ... 1.537e-10 27.42

    array([[[ 0.00000000e+00, -0.00000000e+00,  0.00000000e+00,
              0.00000000e+00, -0.00000000e+00,  0.00000000e+00],
            [ 0.00000000e+00, -0.00000000e+00,  0.00000000e+00,
              0.00000000e+00, -0.00000000e+00,  0.00000000e+00],
            [ 0.00000000e+00, -0.00000000e+00,  0.00000000e+00,
              0.00000000e+00, -0.00000000e+00,  0.00000000e+00],
            ...,
            [ 0.00000000e+00, -0.00000000e+00,  0.00000000e+00,
              0.00000000e+00, -0.00000000e+00,  0.00000000e+00],
            [ 0.00000000e+00, -0.00000000e+00,  0.00000000e+00,
              0.00000000e+00, -0.00000000e+00,  0.00000000e+00],
            [ 0.00000000e+00, -0.00000000e+00,  0.00000000e+00,
              0.00000000e+00, -0.00000000e+00,  0.00000000e+00]],
    
           [[-2.82584625e+02,  2.28986546e-01, -1.81254253e-01,
             -2.21229267e+00,  1.75114071e+00, -2.41937851e-14],
            [-2.82571259e+02,  2.28987753e-01, -1.81255206e-01,
             -2.21230292e+00,  1.75114691e+00, -2.41937851e-14],
            [-2.82572632e+02,  2.28987649e-01, -1.81255132e-01,
             -2.21230173e+00,  1.75114596e+00, -2.41937851e-14],
    ...
              1.53751206e-10, -1.53751206e-10,  3.00097656e+01],
            [ 0.00000000e+00,  1.04515173e+03, -1.07501257e+03,
             -2.31556899e-10,  2.31556899e-10, -3.70357823e+00],
            [ 0.00000000e+00, -8.06685486e+02,  8.51945618e+02,
             -1.53751206e-10,  1.53751206e-10,  2.63836060e+01]],
    
           [[-3.87511932e+02,  2.57530127e+03, -2.53662695e+03,
             -1.86224231e+03,  1.78742834e+03,  1.12936821e+02],
            [-2.68336487e+02,  2.30019043e+03, -2.24345068e+03,
             -2.20895337e+03,  2.15852637e+03,  1.12936821e+02],
            [-3.89663300e+02,  2.45480908e+03, -2.43145703e+03,
             -1.90669751e+03,  1.82404114e+03,  1.12936821e+02],
            ...,
            [ 0.00000000e+00, -8.99404541e+02,  8.55880310e+02,
              1.53662000e-10, -1.53662000e-10,  3.09202595e+01],
            [ 0.00000000e+00,  1.04388818e+03, -1.07351477e+03,
             -2.31467692e-10,  2.31467692e-10, -4.38377047e+00],
            [ 0.00000000e+00, -8.57082581e+02,  9.00681152e+02,
             -1.53662000e-10,  1.53662000e-10,  2.74231911e+01]]],
          shape=(2001, 24, 6), dtype=float32)

  • plasticDeformation
    (time, eleTags, basicDofs)
    float32
    0.0 -0.0 0.0 0.0 ... 0.0 -0.0 0.0

    array([[[ 0.0000000e+00, -0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
             -0.0000000e+00,  0.0000000e+00],
            [ 0.0000000e+00, -0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
             -0.0000000e+00,  0.0000000e+00],
            [ 0.0000000e+00, -0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
             -0.0000000e+00,  0.0000000e+00],
            ...,
            [ 0.0000000e+00, -0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
             -0.0000000e+00,  0.0000000e+00],
            [ 0.0000000e+00, -0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
             -0.0000000e+00,  0.0000000e+00],
            [ 0.0000000e+00, -0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
             -0.0000000e+00,  0.0000000e+00]],
    
           [[-1.5661424e-03,  1.9870290e-08, -9.5877812e-09, -1.9197145e-07,
              9.2629953e-08,  4.7019774e-38],
            [-1.5659872e-03,  1.9869306e-08, -9.5873061e-09, -1.9196195e-07,
              9.2625022e-08,  4.7019774e-38],
            [-1.5660033e-03,  1.9869407e-08, -9.5873585e-09, -1.9196293e-07,
              9.2625498e-08,  4.7019774e-38],
    ...
              9.8607613e-32,  0.0000000e+00],
            [ 0.0000000e+00, -0.0000000e+00,  0.0000000e+00,  0.0000000e+00,
             -0.0000000e+00,  0.0000000e+00],
            [ 0.0000000e+00, -1.0842022e-19,  2.1684043e-19, -4.9303807e-32,
             -9.8607613e-32,  0.0000000e+00]],
    
           [[-9.1270369e-01,  6.8748467e-02, -6.3051000e-02, -6.3984126e-02,
              5.9601456e-02,  0.0000000e+00],
            [-7.3173368e-01,  6.8917647e-02, -6.3261718e-02, -6.3768581e-02,
              5.8831036e-02,  0.0000000e+00],
            [-9.4613296e-01,  6.8836577e-02, -6.4109989e-02, -6.3946441e-02,
              5.9080359e-02, -2.1175824e-22],
            ...,
            [ 0.0000000e+00, -1.0842022e-19,  0.0000000e+00,  0.0000000e+00,
             -0.0000000e+00,  0.0000000e+00],
            [ 0.0000000e+00,  2.1684043e-19,  4.3368087e-19,  4.9303807e-32,
              9.8607613e-32,  0.0000000e+00],
            [ 0.0000000e+00, -3.2526065e-19,  0.0000000e+00,  0.0000000e+00,
             -0.0000000e+00,  0.0000000e+00]]],
          shape=(2001, 24, 6), dtype=float32)

  • sectionForces
    (time, eleTags, secPoints, secDofs)
    float32
    0.0 -0.0 -0.0 0.0 ... nan nan nan

    array([[[[ 0.00000000e+00, -0.00000000e+00, -0.00000000e+00,
               0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
             [ 0.00000000e+00, -0.00000000e+00, -0.00000000e+00,
               0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
             [ 0.00000000e+00, -0.00000000e+00, -0.00000000e+00,
               0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
             [ 0.00000000e+00, -0.00000000e+00, -0.00000000e+00,
               0.00000000e+00,  0.00000000e+00,  0.00000000e+00]],
    
            [[ 0.00000000e+00, -0.00000000e+00, -0.00000000e+00,
               0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
             [ 0.00000000e+00, -0.00000000e+00, -0.00000000e+00,
               0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
             [ 0.00000000e+00, -0.00000000e+00, -0.00000000e+00,
               0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
             [ 0.00000000e+00, -0.00000000e+00, -0.00000000e+00,
               0.00000000e+00,  0.00000000e+00,  0.00000000e+00]],
    
            [[ 0.00000000e+00, -0.00000000e+00, -0.00000000e+00,
               0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
    ...
                          nan,             nan,             nan]],
    
            [[ 0.00000000e+00, -1.04388818e+03, -0.00000000e+00,
               2.28005809e-10,  0.00000000e+00, -4.38377047e+00],
             [ 0.00000000e+00,  1.48132582e+01, -0.00000000e+00,
               1.16322274e-25,  0.00000000e+00, -4.38377047e+00],
             [ 0.00000000e+00,  1.07351477e+03, -0.00000000e+00,
              -2.28005809e-10,  0.00000000e+00, -4.38377047e+00],
             [            nan,             nan,             nan,
                          nan,             nan,             nan]],
    
            [[ 0.00000000e+00,  8.57082581e+02, -0.00000000e+00,
               1.50200116e-10,  0.00000000e+00,  2.74231911e+01],
             [ 0.00000000e+00, -2.17992802e+01, -0.00000000e+00,
               7.75481824e-26,  0.00000000e+00,  2.74231911e+01],
             [ 0.00000000e+00, -9.00681152e+02, -0.00000000e+00,
              -1.50200116e-10,  0.00000000e+00,  2.74231911e+01],
             [            nan,             nan,             nan,
                          nan,             nan,             nan]]]],
          shape=(2001, 24, 4, 6), dtype=float32)

  • localForces
    (time, eleTags, localDofs)
    float32
    -0.0 -0.0 -0.0 ... 1.537e-10 900.7

    array([[[-0.00000000e+00, -0.00000000e+00, -0.00000000e+00, ...,
              0.00000000e+00, -0.00000000e+00,  0.00000000e+00],
            [-0.00000000e+00, -0.00000000e+00, -0.00000000e+00, ...,
              0.00000000e+00, -0.00000000e+00,  0.00000000e+00],
            [-0.00000000e+00, -0.00000000e+00, -0.00000000e+00, ...,
              0.00000000e+00, -0.00000000e+00,  0.00000000e+00],
            ...,
            [-0.00000000e+00, -0.00000000e+00, -0.00000000e+00, ...,
              0.00000000e+00, -0.00000000e+00,  0.00000000e+00],
            [-0.00000000e+00, -0.00000000e+00, -0.00000000e+00, ...,
              0.00000000e+00, -0.00000000e+00,  0.00000000e+00],
            [-0.00000000e+00, -0.00000000e+00, -0.00000000e+00, ...,
              0.00000000e+00, -0.00000000e+00,  0.00000000e+00]],
    
           [[-2.82584625e+02,  2.84889434e-03, -2.75238436e-02, ...,
             -2.41937851e-14,  1.75114071e+00, -1.81254253e-01],
            [-2.82571259e+02,  2.84890947e-03, -2.75239572e-02, ...,
             -2.41937851e-14,  1.75114691e+00, -1.81255206e-01],
            [-2.82572632e+02,  2.84890831e-03, -2.75239423e-02, ...,
             -2.41937851e-14,  1.75114596e+00, -1.81255132e-01],
    ...
              3.00097656e+01, -1.53751206e-10,  8.06402832e+02],
            [-0.00000000e+00,  8.83401775e+00, -1.92964091e-12, ...,
             -3.70357823e+00,  2.31556899e-10, -1.07501257e+03],
            [-0.00000000e+00, -6.91096258e+00, -1.28126004e-12, ...,
              2.63836060e+01,  1.53751206e-10,  8.51945618e+02]],
    
           [[-3.87511932e+02,  3.54995003e+01, -2.53449345e+01, ...,
              1.12936821e+02,  1.78742834e+03, -2.53662695e+03],
            [-2.68336487e+02,  3.15530624e+01, -3.03297195e+01, ...,
              1.12936821e+02,  2.15852637e+03, -2.24345068e+03],
            [-3.89663300e+02,  3.39324036e+01, -2.59079075e+01, ...,
              1.12936821e+02,  1.82404114e+03, -2.43145703e+03],
            ...,
            [-0.00000000e+00, -7.31368685e+00,  1.28051660e-12, ...,
              3.09202595e+01, -1.53662000e-10,  8.55880310e+02],
            [-0.00000000e+00,  8.82251167e+00, -1.92889736e-12, ...,
             -4.38377047e+00,  2.31467692e-10, -1.07351477e+03],
            [-0.00000000e+00, -7.32401562e+00, -1.28051660e-12, ...,
              2.74231911e+01,  1.53662000e-10,  9.00681152e+02]]],
          shape=(2001, 24, 12), dtype=float32)

  • sectionDeformations
    (time, eleTags, secPoints, secDofs)
    float32
    0.0 -0.0 -0.0 0.0 ... nan nan nan

    array([[[[ 0.00000000e+00, -0.00000000e+00, -0.00000000e+00,
               0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
             [ 0.00000000e+00, -0.00000000e+00, -0.00000000e+00,
               0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
             [ 0.00000000e+00, -0.00000000e+00, -0.00000000e+00,
               0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
             [ 0.00000000e+00, -0.00000000e+00, -0.00000000e+00,
               0.00000000e+00,  0.00000000e+00,  0.00000000e+00]],
    
            [[ 0.00000000e+00, -0.00000000e+00, -0.00000000e+00,
               0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
             [ 0.00000000e+00, -0.00000000e+00, -0.00000000e+00,
               0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
             [ 0.00000000e+00, -0.00000000e+00, -0.00000000e+00,
               0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
             [ 0.00000000e+00, -0.00000000e+00, -0.00000000e+00,
               0.00000000e+00,  0.00000000e+00,  0.00000000e+00]],
    
            [[ 0.00000000e+00, -0.00000000e+00, -0.00000000e+00,
               0.00000000e+00,  0.00000000e+00,  0.00000000e+00],
    ...
                          nan,             nan,             nan]],
    
            [[ 0.00000000e+00, -2.79289197e-05, -0.00000000e+00,
               1.08448499e-17,  0.00000000e+00, -4.38377057e-10],
             [ 0.00000000e+00,  3.96324339e-07, -0.00000000e+00,
               5.53274334e-33,  0.00000000e+00, -4.38377057e-10],
             [ 0.00000000e+00,  2.87215698e-05, -0.00000000e+00,
              -1.08448499e-17,  0.00000000e+00, -4.38377057e-10],
             [            nan,             nan,             nan,
                          nan,             nan,             nan]],
    
            [[ 0.00000000e+00,  2.29309917e-05, -0.00000000e+00,
               7.14410583e-18,  0.00000000e+00,  2.74231904e-09],
             [ 0.00000000e+00, -5.83233259e-07, -0.00000000e+00,
               3.68849556e-33,  0.00000000e+00,  2.74231904e-09],
             [ 0.00000000e+00, -2.40974587e-05, -0.00000000e+00,
              -7.14410583e-18,  0.00000000e+00,  2.74231904e-09],
             [            nan,             nan,             nan,
                          nan,             nan,             nan]]]],
          shape=(2001, 24, 4, 6), dtype=float32)

  • sectionLocs
    (time, eleTags, secPoints, locs)
    float32
    0.0 -120.0 120.0 ... nan nan nan

    array([[[[ 0.0000000e+00, -1.2000000e+02,  1.2000000e+02,
               0.0000000e+00],
             [ 2.7639320e-01, -1.2000000e+02,  1.2000000e+02,
               3.9800621e+01],
             [ 7.2360682e-01, -1.2000000e+02,  1.2000000e+02,
               1.0419939e+02],
             [ 1.0000000e+00, -1.2000000e+02,  1.2000000e+02,
               1.4400000e+02]],
    
            [[ 0.0000000e+00,  1.2000000e+02,  1.2000000e+02,
               0.0000000e+00],
             [ 2.7639320e-01,  1.2000000e+02,  1.2000000e+02,
               3.9800621e+01],
             [ 7.2360682e-01,  1.2000000e+02,  1.2000000e+02,
               1.0419939e+02],
             [ 1.0000000e+00,  1.2000000e+02,  1.2000000e+02,
               1.4400000e+02]],
    
            [[ 0.0000000e+00,  1.2000000e+02, -1.2000000e+02,
               0.0000000e+00],
    ...
             [           nan,            nan,            nan,
                         nan]],
    
            [[ 0.0000000e+00,  1.2000000e+02, -1.2000000e+02,
               4.3200000e+02],
             [ 5.0000000e-01,  0.0000000e+00, -1.2000000e+02,
               4.3200000e+02],
             [ 1.0000000e+00, -1.2000000e+02, -1.2000000e+02,
               4.3200000e+02],
             [           nan,            nan,            nan,
                         nan]],
    
            [[ 0.0000000e+00, -1.2000000e+02, -1.2000000e+02,
               4.3200000e+02],
             [ 5.0000000e-01, -1.2000000e+02,  0.0000000e+00,
               4.3200000e+02],
             [ 1.0000000e+00, -1.2000000e+02,  1.2000000e+02,
               4.3200000e+02],
             [           nan,            nan,            nan,
                         nan]]]], shape=(2001, 24, 4, 4), dtype=float32)

• Attributes: (5)

  localDofs :

  local coord system dofs at end 1 and end 2

  basicDofs :

  basic coord system dofs at end 1 and end 2

  secPoints :

  section points No.

  secDofs :

  section forces and deformations Dofs. Note that the section DOFs are only valid for <Elastic Section>, <Elastic Shear Section>, and <Fiber Section>. For <Aggregator Section>, you should carefully check the data, as it may not correspond directly to the DOFs.

  Notes :

  Note that the deformations are displacements and rotations in the basicDofs;And strains and curvatures in the secDofs

opsvis.set_plot_props(point_size=3.0)
opsvis.set_plot_colors(frame="gray")

fig = opsvis.plot_frame_responses(
    odb_tag=1,
    slides=False,
    step="absMax",
    resp_type="sectionDeformations",
    resp_dof="My",
    unit_symbol="N·m",
    scale=3.0,
    show_values=True,  # hover to show values
    line_width=5,
    show_bc=True,
    bc_scale=2,
    style="surface",
    opacity=1.0,
)
# fig.show()  # for auto
# fig.write_html("sectionDeformations.html", full_html=False, include_plotlyjs="cdn")
fig

OPSTOOL ::  Loading response data from G:\opstool\docs\.opstool.output/RespStepData-1.zarr ...

framerate = int(2000 / 20)  # Set framerate for animation, 2000 steps, 20 seconds

fig = opsvis.plot_nodal_responses_animation(
    odb_tag=1,
    framerate=framerate,
    resp_type="disp",
    resp_dof=["UX", "UY", "UZ"],
    defo_scale=10,
    unit_symbol="in",
    show_bc=True,
    bc_scale=5,
)
# fig.show()
# fig.write_html("nodal_responses_animation.html", full_html=False, include_plotlyjs="cdn")
fig

OPSTOOL ::  Loading response data from G:\opstool\docs\.opstool.output/RespStepData-1.zarr ...

framerate = int(2000 / 20)  # Set framerate for animation, 2000 steps, 20 seconds

fig = opstool.vis.pyvista.plot_nodal_responses_animation(
    odb_tag=1,
    framerate=framerate,
    savefig="images/NodalRespAnimation.mp4",
    resp_type="disp",
    resp_dof=["UX", "UY", "UZ"],
    defo_scale=10,
    unit_symbol="in",
    show_bc=True,
    bc_scale=5,
)
fig.show()

Static Scene

Interactive Scene

OPSTOOL ::  Loading response data from G:\opstool\docs\.opstool.output/RespStepData-1.zarr ...
Animation has been saved to images/NodalRespAnimation.mp4!

Don’t forget to close the figure

fig.close()